nugunga haengsajangeseo jeoreul bulleosseoyo.

누군가 means someone.

• 누가 = who
• 누군가 = someone / somebody

So in this sentence, the speaker is not asking who did it. They are saying that an unknown person did it.

Compare:

• 누가 저를 불렀어요? = Who called me?
• 누군가 저를 불렀어요. = Someone called me.

행사장 means event venue / event hall / event site, and -에서 marks the place where an action happens.

So:

• 행사장 = event venue
• 행사장에서 = at the event venue

Here, 부르다 is an action, so -에서 is used to show where that action took place.

A learner may wonder why it is not 행사장에. In general:

• -에 often marks a destination or location of existence
• -에서 marks the place where an action happens

Since calling someone is an action happening at that place, 행사장에서 is the natural choice.

Both mean me, but they differ in politeness.

• 저 = humble/polite I / me
• 나 = plain/informal I / me

Because the sentence ends in -어요, which is polite speech, using 저를 matches that politeness level well.

So:

• 저를 불렀어요 = polite/natural
• 나를 불렀어요 = grammatically possible, but the style mix can sound less natural depending on context

-를 is the object marker. It shows that 저 (me) is the thing receiving the action.

So in this sentence:

• 누군가 = someone (subject)
• 저를 = me (object)
• 불렀어요 = called

In other words, someone called me.

You may also see -을 instead of -를 after consonants:

• vowel + 를
• consonant + 을

Examples:

• 저를
• 친구를
• 학생을

불렀어요 comes from the verb 부르다, which can mean to call.

This is a very common verb, but its conjugation is a little tricky because it follows the 르 irregular pattern.

Basic idea:

• dictionary form: 부르다
• past polite: 불렀어요

Why?

With 르 irregular verbs, the 르 changes and an extra ㄹ appears in the previous syllable.

So:

• 부르다 → 불러요 (present)
• 부르다 → 불렀어요 (past)

This is something learners usually just memorize after seeing a few examples.

Other similar verbs:

• 모르다 → 몰라요 / 몰랐어요
• 고르다 → 골라요 / 골랐어요

The verb 부르다 has several meanings depending on context, including:

• to call
• to sing
• to name
• to invite for/ask for in some expressions

In this sentence, the pattern is:

• someone + me + called

That makes to call the natural meaning.

If it meant to sing, the sentence structure or context would usually make that clear. For example:

• 노래를 불렀어요 = (someone) sang a song

So here, 저를 불렀어요 clearly means called me.

The ending -어요 is a polite informal ending, and -었- marks past tense.

So:

• 불러요 = calls / is calling / calls me
• 불렀어요 = called

This means the sentence is in:

• past tense
• polite style

It is a very common style in everyday conversation.

It is polite, but not the most formal level.

불렀어요 is the standard polite conversational style. It is very common in daily speech.

Compare:

• 누군가 행사장에서 저를 불렀어요. = polite everyday speech
• 누군가 행사장에서 저를 불렀습니다. = more formal
• 누군가 행사장에서 날 불렀어. = casual/informal

So the original sentence is a good neutral-polite sentence.

Yes. Korean word order is more flexible than English, as long as the particles make the roles clear.

Original:

• 누군가 행사장에서 저를 불렀어요.

Possible variations:

• 행사장에서 누군가 저를 불렀어요.
• 저를 누군가 행사장에서 불렀어요.
• 누군가 저를 행사장에서 불렀어요.

These all mean roughly the same thing, though the emphasis can shift slightly depending on what comes first.

The most neutral order is often close to:

• subject + place + object + verb

which is what your sentence uses.

Yes, in many situations Korean can omit the subject if it is obvious or unimportant.

For example:

• 행사장에서 저를 불렀어요.

This could mean Someone called me at the event venue, if the context already makes that clear.

However, using 누군가 explicitly helps show that the speaker does not know who it was, or does not want to specify.

So including 누군가 adds the meaning some unknown person.

Not necessarily. 행사장 is a broad word for the place where an event is being held.

Depending on context, it could be translated as:

• event venue
• event hall
• event site
• venue

It does not always mean a literal building or hall. It just refers to the place of the event.

So in English, the best translation can vary depending on the situation.

Yes. In careful speech, 저를 is pronounced as written, but in natural conversation it is often contracted to 절.

So:

• 저를 불렀어요 → often sounds like 절 불렀어요

Both represent the same meaning.

This kind of contraction is very common:

• 나를 → 날
• 너를 → 널
• 저를 → 절

A learner should recognize both, even if textbooks often teach the full form first.

It is pronounced approximately like 불러써요.

That is because when ㅆ and 어 come together in speech, the sound flows in a way that makes it sound like:

• 불렀어요 → 불러써요

This is normal Korean pronunciation, even though the spelling stays 불렀어요.

So if you hear something like 불러써요, it is the same word.

Usually, 저를 불렀어요 is most directly understood as called me or called out to me.

It can include the idea that someone was trying to get the speaker’s attention, for example by saying their name or shouting to them.

So in natural English, depending on context, it could be:

• Someone called me at the event venue.
• Someone called out to me at the event venue.
• Someone was calling for me at the event venue.

But the core Korean meaning is still based on 부르다 = to call.

A casual version would be:

• 누군가 행사장에서 날 불렀어.

Changes:

• 저를 → 날 or 나를
• 불렀어요 → 불렀어

This makes the sentence informal and suitable for speaking to friends or people younger than you.

So:

• polite: 누군가 행사장에서 저를 불렀어요.
• casual: 누군가 행사장에서 날 불렀어.